Detachable wheel.



L. MONTUPBT. DETAGHABLE WHEEL. APPLICATION FILED AUG. z, 1912.

Patented Jn. 6, 1914.

2 SHEETS-SHEET 1.

L. MONTUPET. DETACHABLE WHEEL. APPLICATION FILED AUG. 2, 1912.

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NOGENT-LES-VIERGES, OISE, FRANCE.

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,cesena .To all whom it may concern Be it known that I, LiioN MONTUPET, a citizen of the French. Republic, residing in -Paris. France', have invented certain new and useful Improvements in Detachable Wheels, of which the following is a specification.

This invention relates to a construction of detachable wheel strengthened aluminium which is also interchangeable, that is to say, this construction enables a damaged wheel to be instantaneously replaced by another one in good condition.

Compared tothe systems of the same kind hitherto known, the invention is characterized by the connection of the wheel to the axle journal being eil'ectedby means of a false hub which remains constantly secured to the said journal and which itself comprises all the parts intended to secureV the wheel in position as well as to insure automatic locking of the said parts for the purpose of preventing them from becoming unscrewed. J

According to this invention, the wheel is secured in position on the journal by means or' a conical expanding sleeve secured to a false hub permanently secured to the said journal, and coperating with a conical nut which it issuicient to screw or to unscrew to a few'turns in. order to enablethe wheel to be secured to, or removed from, the false cannot be operatethexcept by a special.

spanner.

In the accompanying drawing given by way of example, Figure 1 shows in crosssection the central portion of a ywheel in position on the false hub.l Fig. Q. shows in perspective the central portion of the wheel removed from the false hub, Figs. 3-5 show the false hub and the expanding and locking parts, .F ig. G shows the sami. parts after fitting, ready to receive the wheel, 7 shows the hub of the wheel mounted on the falseliub. Figs. 8 and 9 sh ,w in perspective the rear and front far-es of the operating spanner, and Figs. 10-133 relate to a modified construction.

This detachable wheel comprises the Specica'tion of Letters Patent.

Patented Jan. 6, 1914.

ed radially in pairs about the hub 1 and 5b connected in any suitable manner to the rim. Thisme'tal frame-Work is then inl, closed in acasing of some light metal with comparatively low meltingv point such as. aluminium. The hub or core 1 is provided 60- on one of its faces With radial sectors 5, 6 alternately projecting and recessed, intended to cooperate with sectors 7 8 ofthe4 same arrangement provided on the false hub. The latter part consists of a box,l 9 65 provided at one of its ends with a cheek or flange 10 provided with the above mentioned sectors 7, 8, and receives on its other end which is screwthreaded for the purpose, the cap 11 of the Wheel. To the inner 7GA face of the flange 10 is secured the shoulder of an expanding segmented ring 12, the different segments of which are intendedto apply with their oute' surfaces against the inner bore of the core or hub l of the wheel, 75

V13 (Fig. 4), the circumference of which is conical, the .said nut being introduced into the expanding ring 1Q in order to force its segments against the inner bore of the hub 1,l the latter thus being firmly secured against theange 10 on. the one hand, and on the expanding ring 12 on the other hand. 85

0n the box or sleeve 9, between the nut 13 and the flange 10, can slide longitudinally a sleeve' 14 (Fig. 5) rotating together with the said box 9 owing tothe use of keys 15 or of any other suitable device. This sleeve 14 is provided With a toothed rim 16 which. owing to the action of a spring 17, has al- Vways the tendency to engage with another pose, is arranged between the box 9 and the counter-cheek or flange 27 held against the saine time the nut 13 to be turned. in order totighten or loosen it. 'llie said spanner is constituted byl a ring 20A provided, with a handle and carrying a certain nuinber oit cells 21 with which engage radial bosses 22 provided on the nut 13 so that the said nut can be gripped in an etlicacious manner in order to turn it in one or in `the other direction. ',llhe bottom of each .of the cells 21 is constituted by a plate provided with a. Harige with a dove tail groove, with which engages the beveled edge of the boss Z2 ol the nut 13. During the engagement of the spanner with the nut 13, these beveled ends ofthe bosses Q2 pass through recesses 23 rnade on the flanges of the cells 21.

The Whole construction is completed by a corresponding face of the disk 1 by the bosses of the nut 13. Recesses 28 provided at the inner edge of thecounter-cheek 27, the number of which corresponds to that of the bosses 22 of the nut 13, enable the said counter cheek to be put in place or removed, Without its being necessary to remove. the nut 13. Vthe counter cheek 27 is held in place on `the hub 1 by Ineens of a pin 29 provided on the front tace otv the said hub. Leather packing inserted betweenthe counter cheelr 27 and the hub or core 1, prevents dirtdust or water from getting into the interior of the mechanism. Another' leather packing 26 serving the saine purnut-13.

The Working is follows: The false hub 9 previously provided with its expanding ring 12 as Well as with its keys 15, having been placed on the journal, into the interior of the said ring are successively introduced the spring 17, the safety sleeve 14, then the nut 13 provided With its drivers 9 Which it is sutlieient siniply to bring near the ring 12 Without exercising any action on the saine. The Wheel is then placed on the Whole of these parts, taking care that the solid sectors ot the grips olf'its hub 1 should enga ge with the recessed sectors 8 of the grips ol' the flange 1f) of the false hub. ritter the cheek 27, in the torni shown in Fig. 1, has b in placed position, the special snannei l is then placed on the nut 13, the bottoms of the cells 21 Abeing sirnultaneously applied with pressure against the drivers 19. rlfheseinaninulations result in the sleeve let being pushed away, and its teeth 16 disengaged 'from the teeth 18 ot' the nut 13, so that the latter can be screwed heine, until the expanding ringr 12 is absolutely wedged. in the hub 1 ot the wheel. The detachable wheel is then tted. t remains merely to remove the Spanner 20, which releases the drivers 19 which return ininiurn alloy.

to their original position under the action i insensaor" the spring 1( and of the safety sleeve 1d.

, The engagement ot the teeth 1G and 1S then takes place automatically, and the nut 13 is thus fixed in an vabsolute manner. Unly a subsequent use of the Spanner 20 will `enable it to be again released, and the Wheel removed. 4

ln the modified construction forming the subject oi Figs. 10-13 corresponding respectively to Figs.. 1, 7, 3, 6, the counter cheek 2T which was arranged on the nut 13 and applied against the hub, has been done away with. The spokes 2 and 3 are arranged radially about the hub 1 and made integral with the latter by being embedded in the solid spoke 4l. constituted by a light fusible alloy such as foi-.instance an alu- The hub 1 for-erecting 'the wheel engages over an expanding ring 12 made of segments, belonging to the ifelse hub, the front conical edge of which fori/ns a series ofwedges 29. "lhe-se Wedges are in tended to engage by means oli' their inner conical surfaces, With the corresponding outer surface of the tightening nut 13, and' with a groove 28 provided at the back ot the flange 37 oil the hub 1. The object of this arrangement to prevent the Wheel trein accidentally coming .off the false hub in the event of the conical nut 13 being lor seine reason insulllciently tightened.

W hat l claim as my invention and desire to secure by Letters Patent is:-

1. A detachable wheel mechanism coni-- prising in combination a false hub, a removable 4wheel rneinber adapted to engage over, and abut against a shoulder on, the false hub and having an inner conical bearing surface tapering inwardly of the vehicle, a resilient annular nieniber secured Within the false hub and athipted to iit the conical vsurface in the Wheel-hub, a nut adapted to be screwedv on the false hub and having inwardly tapering outer conical surface adapted to engage with a corresponding in ner surface in said resilient member and to force it into engageincnt with the hub, and means arranged exclusively within the :talee hub 'for locking the nut to said false hub.

Q. .i detachable `Wheel mechanism coin arising in combination a false hub, a removable wheel` ineinber adapted to engage over the Yliaise hub and having inner coni-- cal bearing surface tapering inwardly oit the vehicle and a sloping grieve the large diameter end of said surface, an annular conical segnientally split member attached at its inner small end to the false hub and having a wedge-shaped annular rib at its outer large end, a nut adapted to be screwed on the false hub and having an inwardly tapering outer conical surface adapted toengage with a corresponding inner surface 1n said conical member and to force its mesme outer surface into engagement with the name eo this speocelon in the presenee of .hearing Surfin in the Wheel member alud'its two subscribing wnessos. edge-shaped rbinto engagement with the LEN sloping groove in seid wheel member, and J 5 means arranged exclusively within the false Wtnessesz hub for locking the nut to said false hub. VICTOR BUEQNT,

In testimony whereof I have signed my GEORGES BONNE-Ism.

MQNTUPET. 

